基于陶瓷电极的质子交换膜在低温常压合成氨中的应用  

作　　者：王忱 陈成 

机构地区：[1]圣凯(天津)工业有限公司,300300

出　　处：《科技创新导报》2014年第15期75-76,共2页Science and Technology Innovation Herald

摘　　要：以多孔性Ni—La_(0.9)Ba_(0.1)Ga_(0.8)Mg(0.2)O_(3-α)为阳极,多孔性Sm_(0.2)Ce_(0.8)O_2为阴极,基于质子离子液体(PIL)的质子交换膜为电解质,组装成单电池。用交流阻抗法测定质子交换膜在氢气气氛中30-110℃的电导率,最高电导率出现在90℃,为1.4×10~3 S cm^1。用该单电池进行常压合成氨,最佳条件下(温度为90℃,电流为1.4 mA)的氨产率为3.5×10^(-9)mol s^(-1)cm^(-2)。An electrolytic cell was assembled by porous Ni-La0.9Ba0.1Ga0.8Mg0.2O3-α as anode,porous Sm0.2Ce0.8O2 as cathode and proton conducting membrane based on PIL as electrolyte materials.The conductivity was investigated in hydrogen atmosphere from 30 ℃ to 110℃ by AC impedance spectroscopy,and the highest conductivity was observed at 90 ℃ with the value of 1.4×10^-3 S cm^-1.Synthesis of ammonia was executed successfully in the electrolytic cell,and The rate of NH3 was 3.5×109 mol s^-1 cm^-2 at 90 ℃and 1.4 m A.

关 键 词：陶瓷电极 PIL基质子交换膜 电导率 合成氨 

分 类 号：TM911.4[电气工程—电力电子与电力传动]